Excited QCD 2016

Session

Monday Morning

7 Mar 2016, 08:30

Costa da Caparica, Portugal

Conveners

Monday Morning

• Francesco Giacosa (Kielce University)

65. The QCD sign problem: subtleties with the infinite volume limite

Prof. Thomas Cohen (University of Maryland)

07/03/2016, 08:30

The sign problem in QCD is important since it inhibits our ability to use numerical lattice gauge theory methods to describe many significant problems including QCD matter at nonzero baryon chemical potential. In this talk, the sign problem is explored for QCD with a theta term--a more straightforward problem than the case of the chemical potential. Various subtle effects arise in the...

87. Lattice Landau Gauge Quark Propagator and Quark-Gluon Vertex

Dr Orlando Oliveira

07/03/2016, 09:00

We report an ongoing lattice calculation of the Landau gauge quark propagator and quark-gluon vertex form factors using two flavours of dynamical O(a) improved Wilson fermions.

96. In-medium decay width of $\eta\rightarrow3\pi$ process as a possible probe for chiral restoration

Shuntaro Sakai (Kyoto University)

07/03/2016, 09:30

In this talk, we present the result of our investigation of the $\eta\rightarrow3\pi$ ($\pi^+\pi^-\pi^0$ and $3\pi^0$) decay width in the nuclear medium and the possible relevance of the chiral restoration using linear sigma model. In the decay process of the $\eta$ meson into three pions, the S-wave interaction of the pions which is called sigma mode gives a significant contribution. The...

74. Leading and sub-leading flows at the LHC from the CMS

Mr Damir Devetak (CMS)

07/03/2016, 10:30

The initial state fluctuations of the colliding heavy ion nuclei play a major role in understanding the anisotropic flow of final state particles. Furthermore, an important signature of these fluctuations is the flow (event-plane) angle dependence from $p_T$ that induces a measurable effect of factorization breaking in a pure relativistic hydrodynamic picture. The effect can be quantified by a...

104. Coherent gluon radiation in proton-nucleus collisions

Dr Stephane Peigne (CNRS)

07/03/2016, 11:00

I will review the main features of medium-induced coherent gluon radiation associated with the hard forward scattering of a parton crossing a nuclear medium, as well as its effects on hadron production in proton-nucleus collisions

50. Thermalization and hydrodynamization in the color-flux-tube model

Dr Radoslaw Ryblewski (Institute of Nuclear Physics PAN)

07/03/2016, 11:35

Detailed study of thermalization of the momentum spectra of partons produced via decays of the color flux tubes due to the Schwinger tunneling mechanism is presented. The collisions between particles are included in the relaxation time approximation specified by different values of the shear viscosity to entropy density ratio. At first we show that, to a good approximation, the...

69. A non-perturbative study of the correlation functions of three-dimensional Yang-Mills theory

Markus Huber (University of Graz)

07/03/2016, 12:05

Functional equations like the functional renormalization group, Dyson-Schwinger equations or n-PI methods are useful tools which provide insight into the non-perturbative regime of quantum field theories. The basic objects are Green functions which can be calculated non-perturbatively. However, while the underlying equations are exact, approximations have to be introduced for the actual...